Several hours later her campaign team confirmed she was diagnosed with pneumonia on Friday but was "feeling much better".

Eyewitness video of her losing her balance as she was helped into her motorcade went viral, fuelling speculation over her fitness to run for election.

Now fresh analysis of the clip shows a strange silver object fly out of the presidential wannabe’s trouser leg as she is dragged into the vehicle.

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MYSTERY: A metal object feel out of Clinton's trousers during a 'medical' episode'

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SICK: Questions over Hillary's fitness to run for election have been raised after the incident

Conspiracy theorists went into overdrive on social media including Reddit, where the video quickly shot to the top of the charts, abuzz with speculation.

Donald Trump supporters were quick to claim that Hillary was wearing a leg brace, and that a section of it had fallen off.

Others suggested it was a diazepam pen, part of a catheter, or that the politician is in fact a robot.

Citing a law enforcement source at the scene, Fox News journalist Rick Leventhal explained his theory on Twitter, writing: “The mysterious piece of metal that fell from Clinton was an arm of her glasses.”

None of these claims have been confirmed.

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